928 PROCEEDINGS OF THE ACADEMY OF [DeC, 



the two institutions. This will make a very valuable addition to the 

 Herbarium, as the flora of that group of islands was previously rep- 

 resented by only a small collection made by Mr. Witmer Stone in 

 1888. 



These plants, now being studied in the Academy's Herbarium, will 

 contribute much to our knowledge of that flora, by adding many species 

 to the already published lists as well as eliminating a number errone- 

 ously recorded through incorrect determinations. 



The Academy has purchased a collection of 100 specimens of Utah 

 plants from Mr. W. A. Garrett, and the Botanical Section a set of Dr. 

 Charles H. Shaw's British Columbia plants, Pringle's Mexican collec- 

 tions for 1903 and 1904 and Heller's California collections for the present 

 year. The greater number of these have been mounted and distrib- 

 uted through the Herbarium. 



The Philadelphia Botanical Club has added to the local Herbarium 

 325 sheets. It has held its meetings in the Herbarium during the year. 

 As a further mark of activity it has just published a book on the 

 local flora entitled Handbook of the Flora of Philadelphia and. Vicinity, 

 which should prove to be particularly valuable to students, and act as 

 a stimulus to the further study of the plants of the region. 



The year has been notable for the number of visitors to the Herbar- 

 ium. The meeting of the American Association for the Advancement 

 of Science, held in Philadelphia during Christmas week, brought to- 

 gether a numlier of the most eminent botanists of the country, many of 

 these paying their first visit to our Herbarium and spending much time 

 there during the session. 



An informal reception, tendered by the Botanical Section and Phila- 

 delphia Botanical Club on the evening of December 29, proved a 

 pleasant occasion, more than fifty of the visiting botanists attending. 



On the afternoon of Deceml^er 31 the Sullivant Moss Chapter held 

 its meeting in the Herbarium, most of its members for the first time 

 having the opportunity of examining the collections of Muhlenberg, 

 Sullivant and others contained in the Herbarium. This occasion 

 brought together many of the most eminent students of the mosses and 

 hepatics. 



During the year many other visiting botanists have availed them- 

 selves of the opportunity for study offered in the Herbarium and 

 Library, and specimens have been loaned for study to Messrs. E. L. 

 Morris, Carlton R. Ball and C. V. Piper. Assistance has been rendered 

 by the Conservator to students and others in determining plants and 

 giving other information. 



